Coffee machine



FIG. 1 illustrates a front perspective view of the coffee machine;

FIG. 2 illustrates a front view of the coffee machine of FIG. 1;

FIG. 3 illustrates a back view of the coffee machine of FIG. 1;

FIG. 4 illustrates a top view of the coffee machine of FIG. 1;

FIG. 5 illustrates a bottom view of the coffee machine of FIG. 1;

FIG. 6 illustrates a right side view of the coffee machine of FIG. 1; and,

FIG. 7 illustrates a left side view of the coffee machine of FIG. 1. 

The ornamental design for a coffee machine, as shown and described. 